1#!/usr/bin/python 2# 3# Copyright 2004 Matt Mackall <mpm@selenic.com> 4# 5# inspired by perl Bloat-O-Meter (c) 1997 by Andi Kleen 6# 7# This software may be used and distributed according to the terms 8# of the GNU General Public License, incorporated herein by reference. 9 10import sys, os, re 11 12if len(sys.argv) != 3: 13 sys.stderr.write("usage: %s file1 file2\n" % sys.argv[0]) 14 sys.exit(-1) 15 16def getsizes(file): 17 sym = {} 18 for l in os.popen("nm --size-sort " + file).readlines(): 19 size, type, name = l[:-1].split() 20 if type in "tTdDbB": 21 # function names begin with '.' on 64-bit powerpc 22 if "." in name[1:]: name = "static." + name.split(".")[0] 23 sym[name] = sym.get(name, 0) + int(size, 16) 24 return sym 25 26old = getsizes(sys.argv[1]) 27new = getsizes(sys.argv[2]) 28grow, shrink, add, remove, up, down = 0, 0, 0, 0, 0, 0 29delta, common = [], {} 30 31for a in old: 32 if a in new: 33 common[a] = 1 34 35for name in old: 36 if name not in common: 37 remove += 1 38 down += old[name] 39 delta.append((-old[name], name)) 40 41for name in new: 42 if name not in common: 43 add += 1 44 up += new[name] 45 delta.append((new[name], name)) 46 47for name in common: 48 d = new.get(name, 0) - old.get(name, 0) 49 if d>0: grow, up = grow+1, up+d 50 if d<0: shrink, down = shrink+1, down-d 51 delta.append((d, name)) 52 53delta.sort() 54delta.reverse() 55 56print "add/remove: %s/%s grow/shrink: %s/%s up/down: %s/%s (%s)" % \ 57 (add, remove, grow, shrink, up, -down, up-down) 58print "%-40s %7s %7s %+7s" % ("function", "old", "new", "delta") 59for d, n in delta: 60 if d: print "%-40s %7s %7s %+7d" % (n, old.get(n,"-"), new.get(n,"-"), d) 61